Surf Forecasts:
Jaconé surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 9PM (local time) - 5.5ft (1.7m), 12s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 9PM (local time) - 7.5ft (2.3m), 14s period, S swell with 2,095 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 9PM (local time) - 5.5ft (1.7m), 12s period with SSW swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 9PM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 1.3m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 2.3m 14s and forecast to arrive on Thursday (Aug 13) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Aug 12) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 12th Aug) | 5.5ft (1.7m) 12s |
| Best Surf | 9PM (Wed 12th Aug) | 5.5ft (1.7m) 12s |
| Most Powerful | 9PM (Thu 13th Aug) | 7.5ft (2.3m) 14s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get into it. We've got a solid run of surf on the cards at Jaconé, with a couple of absolute standout sessions that will have you frothing. The water is a touch warmer than normal for this time of year, sitting at 74°, so that's a nice bonus.
The overall pattern is one of persistent, good-quality, south swell. We start with a strong pulse of energy, and the week ahead is full of cleaner, more organised options. The combined swell energy is strong, hitting four-digit figures like 1523 and 1529, which means there's plenty of power in the water.
The first real standout kicks off on Wednesday the 12th, with the morning session looking prime. The water is already a touch warmer than normal. We've got a solid 8ft south swell, with a period of 12 seconds, putting it firmly in the groundswell category. This is well above the 5ft mark, so it's one for the experienced crew. The wind is a light cross-offshore breeze from the ENE, which will keep the surf clean and the faces open. The swell energy is churning at 1523, a seriously powerful number. This is the best on offer for the early part of the week.
The action continues on Thursday the 13th. The morning is looking crisp with an offshore NNE wind and a 7ft south swell, making for a clean, fun session. But the real highlight of the day is the afternoon. The swell bumps up to 8ft, the period stretches to 14 seconds, and the wind is a light cross-offshore from the ESE. This is a long-period groundswell, so it's going to have plenty of push and shape, best handled at the point or reef. The energy reading jumps to 1918, which is very strong.
The weekend starts off well. Saturday the 15th morning is a classic: a gentle offshore from the ENE with a 8ft south swell. The swell energy is 1959, the highest we've seen so far. This is expert territory for sure, but the conditions will be absolutely pristine. The afternoon gets a bit tricky with a risk of thunderstorms and a stronger cross-offshore wind, but the morning is the clear winner.
We then see a steady drop in size and a shift in direction. Sunday the 16th onwards sees the south swell ease, and we get a run of smaller, east-swell days. The wind windows are still there, with some clean offshore mornings, particularly on Monday the 17th (5ft, east, offshore NE wind) and Tuesday the 18th (5ft, east-northeast, light offshore NNE wind). The energy drops to moderate numbers, around 438 and 617. These are still fun, especially for the intermediate crew, but nothing like the earlier wall of south swell.
There's a bit of a lull mid-week, with Wednesday the 19th and the following days looking poor. The swell drops off, and the wind turns onshore or cross-shore. The energy readings are weak, under 200. This is a quiet patch.
We get a glimmer of hope on Thursday the 20th with a clean offshore morning and a 4ft south-southeast swell, but it's short-lived. The next real event is a building south swell that rolls in around Saturday the 22nd, with 6ft and 5ft waves, but the wind is cross-shore with light rain, so it's a bit messy.
The standouts for the end of the forecast are Sunday the 23rd and Monday the 24th. Sunday morning has a 6ft south swell at 12 seconds, with a light cross-offshore breeze. The energy is back up to 860. That's a solid, clean option. Monday the 24th is even better, with a 7ft south swell, 12-second period, and a gentle offshore NNE wind. The energy is 1159, and the water is clean. This is a top-tier session for experienced surfers.
Looking further out, the week of the 25th brings a massive pulse. Tuesday the 25th morning is showing an 8ft south swell with a 17-second period. The energy reading is a staggering 4267, which is huge. This is a very long period groundswell. It will be incredibly powerful and will be best suited to point breaks and reefs to handle the long period energy. The wind is cross-offshore, so it could be clean, but at this size and period, it's strictly for experts. By Wednesday the 26th, the swell drops to 7ft, but we have glassy conditions in the morning with a light WSW wind. That's a beautiful window. And Thursday the 27th is looking like a glassy, clean morning with a smaller 4ft south swell.
So, to boil it down: the best of the best is the Thursday 13th afternoon and the Saturday 15th morning for the big, clean south swell. The Monday 24th is another cracker. The long-range stuff on the 25th is promising but less certain, so keep an eye on that. Expect crowds at Jaconé, especially on the standouts.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 25°C on Thu morning, min 18°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sat afternoon. Warm (max 30°C on Mon afternoon, min 19°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 12 | S 12 | S 13 | S 12 | S 14 | S 14 | S 13 | S 13 | S 14 | S 13 | S 13 | S 12 | S 11 | E 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||||
1519 | 1496 | 1452 | 1333 | 1918 | 2037 | 1520 | 1359 | 1730 | 1942 | 1712 | 638 | 367 | 311 | 368 | 299 | 307 | 359 | 232 | 137 | 110 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | cross-off | on | cross-on | cross-on | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | on | on |
High Tide | 3:15PM1.05m | 2:18AM1.03m | 3:41PM1.01m | 2:51AM1.07m | 4:01PM0.96m | 3:26AM1.08m | 4:19PM0.92m | 4:02AM1.05m | 4:36PM0.88m | 4:40AM0.99m | 4:57PM0.85m | 5:22AM0.91m | 5:23PM0.81m | ||||||||
Low Tide | 8:43PM0.33m | 9:02AM-0.09m | 9:16PM0.31m | 9:41AM-0.04m | 9:49PM0.29m | 10:18AM0.03m | 10:23PM0.27m | 10:55AM0.13m | 11:00PM0.26m | 11:33AM0.24m | 11:41PM0.26m | 12:15PM0.34m | 00:30AM0.28m | ||||||||
6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | |
mm | — | — | — | — | — | — | — | — | 2 | — | 3 | 2 | — | — | — | — | — | — | — | — | 4 |
Temp °C | 20 | 21 | 19 | 25 | 24 | 24 | 23 | 23 | 22 | 23 | 21 | 20 | 25 | 24 | 21 | 28 | 30 | 21 | 30 | 23 | 21 |
Feels °C | 18 | 18 | 17 | 26 | 24 | 25 | 24 | 24 | 23 | 23 | 19 | 18 | 23 | 21 | 18 | 28 | 28 | 19 | 31 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 13 | S 12 | S 14 | S 14 | S 13 | S 13 | S 14 | S 13 | S 13 | S 12 | S 11 | S 11 | S 11 | E 8 | S 11 | S 10 | E 8 | S 10 | E 8 |
1519 | 1496 | 1452 | 1333 | 1918 | 2037 | 1520 | 1359 | 1730 | 1942 | 1712 | 638 | 367 | 292 | 192 | 239 | 110 | 76 | 172 | 31 | 110 | |
Swell 2 Height (m) Direction Period (s) | E 7 | — | S 12 | ENE 6 | — | ENE 8 | E 8 | E 9 | E 9 | E 10 | ESE 10 | ESE 10 | ESE 12 | ESE 12 | ESE 12 | S 11 | S 14 | — | S 10 | — | S 10 |
4 | — | 104 | 6 | — | 23 | 6 | 6 | 7 | 17 | 22 | 20 | 30 | 14 | 14 | 149 | 14 | — | 34 | — | 19 | |
Swell 3 Height (m) Direction Period (s) | — | — | E 8 | — | — | — | — | — | ENE 6 | — | — | — | — | — | — | — | — | — | — | — | SE 8 |
— | — | 1 | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | — | E 8 | ENE 4 | ENE 5 | E 5 | — | — | — | — | — | E 10 | ESE 7 | ESE 7 | E 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | — |
— | 5 | 18 | 34 | 9 | — | — | — | — | — | 54 | 280 | 220 | 311 | 368 | 299 | 307 | 359 | 232 | 137 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 10 | 0 | 0 | 0 | 58 | 58 | 58 | 0 | 0 | 216 | 44 | 25 | 234 | 25 | 0 | 10 | 0 | 0 | 68 | 253 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.











